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SHOCK ABSORBER. APPLICATION FILED IAN. 6. IsIe.

PEiD.

' lutent'mi 1 Dev. 30, 12519.

fla e/afar. J3 Rafa? Maw/N G. B. REID.

SHOCK ABSORBER.

APPLICATIOPP'F ILED JAN.6,1919.

Patented Dec. 30,1913 2 SHEETS SHEE T 2' lwmron eat,

WITNESS Jaw arm,

UNITED STATES PATENT curios.

GEORGE B. REID, or SEATTLE, wasii'ineron.

SHOCK-ABSORBER.-

Specification of Letters Patent.

Patented Dec. 30, 1919.

Application filed January 6, 1919. Serial No. 269,932.

4 which the following is a specification.

My invention an improvement in shock absorbers, and has for its objectto provide a device of the character ecified, especially adapted forcushioning 1e rebound of vehicie bodies under rc-action. oi the springs,wherein a cheap, simple but eiiicient :on-

struction is provided.

1n the drawings:

Figure 1 is a partial rear view of a motor vehicle having the improvedabsorber,

Fig. '2 is an enlarged detail of the absorber,

Fig. 3 is a section on the line 3-3 of Fig. '2 looking in the directionof the arrows adjacent the line,

Fig. t is a' top plan view of the, rotating Fig. 5 is a perspective viewof the anchor, Fig. 6 is a'partial rear view showing a modifiedconstruction,

Fig. 7 is a. section on the line T-7 of Fig. 6,

Fig. 8 is a section on the line 8-8 of Fig. 7, both views looking in thedirection of the arrows adjacent the respective lines, and

Fig. 9 .is a perspective view of'the supporting shaft.

' The enibodiinentof the invention shown in Figs. 1 to 5 inclusive isshown in connection with a motor vehicle, being arranged between theaxle 1 and the body 2, the body being connected to the axle housing bythe usual springs 3. The improved absorber comprises acasing 4 ofsubstantially cylindrical form, which is mounted upon the portion 5 of ashaft (5, which is detachably con nected to the housing by means of thesubsta'ntiallyU-shapedclip 7.

This casing 4 1s a wheel or pulley, and a strap 8 of flexible material,as for instance, leather coiiperates with the peripheral surface of thecasing under conditions to be' presently described. This strapi'lias oneend connected to a pin 9 on the body 2, and the other end is connectedto a pin 10 extending laterally from an arm 11 which is mounted torotate on a reduced roimdcd portion- 12 of the shaft (5, it beingUnderstood that the shaft 6 and the reduced portion 5 are polygonal incross section, being square in the present instance.

This arln 11 is held in place by a nut and washer l3, and the arm has asecond pin 14. which extends into the open end of the casing l, andengages'one end of a spring 15 whose other end is connected to a pin 16on an anchor plate 1.7 of rectangular form, and having a rectangularopening for reeeiving the reduced portion 5'ot' the shaft (3.-

In operation, the parts under normal conditions occupy the positidnshown in Fig. l, i. 0., the arm 1i extends radially from the shaft atabout the horizontalposition and the strap 8 is taut and under tension,and does not contact with any- "portion of the peripheral surface of thecasing 4.

It will be. understoodthat, a shock absqrher is provided at each cornerof the-Vehicle, and when any or all of the body moves downward withrespect to the fran e or axles, the tension of the springs will rotatethe arms 11 moving the; said arms as indicated in dotted lines in Fig.2, to bring the strap into contact and into engagen'ient with theperiphery of the casing. When new the 4 body' moves n 'nvard, there isconsiderable tension between the casing which is fixed and the strap,and the upward movement of the body is cushioned by this friction.

The en'ibodiment of the inventionof Figs.

(S to 9 inclusive, is shown in connectionwith a motor vehicle, beingarranged between the body 18 and the, axle 19, the body being connectedto the axle housing by the usual springs 20. strap 21 :of flexiblematerial, as, for instance, leather or the like, has one end connectedto thcbody as indicated at22, ,the opposite end 0!? the strap beingconnected to a coil spring 23 connected at its 0ppo site end with thebody as indicatedat' Intermediate its ends the belt passes over a rolleror pulley 25, journaled on the re duccd end oi. the spindle 26 which isconnected to the axle. housing by a substantially -U-shaped clip 27, Theroller has a radial opening into which is threaded'a screw 28 and theinner end of the screw which is rounded as shown, engages within a notch29 in the reduced portion of the shaft 26.

In operation with the parts connected as shown in Fig. 6 and with thespring 23 under tension, it will be obvious that when the springs 20 aredepressed, the spring 23 will take up the slack in the flexibleconnection 21-23. As the body moves upward under the re-coil, the strap21 is drawn from'the roller, putting the spring -23 under greatertension, and the .said springs thus' cushion the movement of the recoil,absorbing the shock which would otherwise be imparted to the body. Thepulley has a very slight angularmovement on the spindle.

1, In a yehicle, the combination with the body, the axle and the springsconnecting the body and the axle of a roller fixed rig- "idly on theaxle, a radial armjournaled to rotate at the axis of the casing, aflexible connection between the body andthe arm, and a spring arrangedbetween the casing and the arm and under-tension when the riphery of thecasing, said arm 'standmg with the bodgein normal position with theflexible mem r out 'of contact with the casing.

2. 'In a vehicle, the combination with the body and the axle, of a fixedpulley on one of said elements, a flexible connection connected with theother of said elements, normally acting spring controlled means fordrawing the flexible member about the peripheral surface of the pulleyand restrained from action .by vthe normal position of the parts.

GEORGE B. REID.

